Editing Lens array

[[File:Microlens Array.jpg|thumb|right|120px|A part of a microlens array in a hexagonal pattern]]
A '''microlens array''' is an optical device that has lots of tiny lenses. It can be used to make a [[light field display]].

It is a flat piece of glass with tiny [[lenslet]]s manufactured into the surface.

A microlens array can potentially be made out of a [[holographic optical element]].

They can be made out of [[fused silica]].<ref name="x001">{{cite web | title=Fused Silica Microlens Arrays | website=Thorlabs, Inc. | url=https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=2861}}</ref>

A microlens array can be found in a [[light field camera]].<ref name="w180">{{cite web | title=Lytro Specifications: A Deeper Look Inside | website=LightField Forum | url=http://lightfield-forum.com/2012/11/lytro-specifications-a-deeper-look-inside/ | access-date=2024-07-09}}</ref>

Each lens in the array has its own optical axis. However, when the array is viewed as a cohesive unit, the lenses form a shared main optical axis.<ref name="u455">{{cite web | title=Microstructure Lens Arrays | website=Laser Focus World | url=https://www.laserfocusworld.com/directory/finished-optics-coatings-components/lens-arrays/product/14303094/avantier-inc-microstructure-lens-arrays}}</ref>

The side with the roundings should generally face towards the source of the light. In a display, this means that the user's eye faces the flat side of the array, and the underlying display faces the side with the roundings.

Microlens arrays can be found in infra-red motion detectors.<ref>https://www.youtube.com/embed/HroJyGDoXI8?t=23</ref>

==Manufacturing==
Microlens arrays can be produced using microfabrication techniques, in particular photolithographic techniques.<ref>https://patentimages.storage.googleapis.com/ae/55/08/039fdcbd181cb7/US20130033636A1.pdf</ref>

Microlens arrays have been manufactured at the wafer level by [[Lytro]].<ref name="f772">{{cite web | title=Karafin Lytro | website=YouTube | url=https://www.youtube.com/watch?v=6nYXVT0QUkc | access-date=2024-07-14}}</ref>

Microlens arrays have been produced with a distance between microlenses of about 125 microns, which is 1/8 of a millimeter.<ref name="u639">{{cite web | title=Plenoptic Cameras: The Future of Imaging | website=YouTube | url=https://www.youtube.com/watch?v=nyRgcD4VxE8 | access-date=2024-07-09}}</ref>

To make a plenoptic microlens based display, each microlens should be at the minimum 200 pixels wide and 200 pixels long.

==References==
<references />

[[Category:Optical components]]
[[Category:Light field]]